NPPES file of Aug 9, 2026

Mary Margaret Brown, D.D.S.

Dentist · Thermopolis, WY

Mary Margaret Brown, D.D.S. is a dentist with a practice address in Thermopolis, Wyoming, and NPI 1639586571, issued on Jul 11, 2014. Check the license (Wyoming 1370, as entered in NPPES) with the Wyoming board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1639586571
Name
Mary Margaret Brown
Credential
D.D.S.
Primary taxonomy
Dentist 122300000X
License number
1370 WY
Self-reported in NPPES; status is on the state search
Practice location
110 E Arapahoe, Thermopolis, WY 82443
Phone
(307) 864-9411
Enumerated
Jul 11, 2014
Record last updated
Jul 11, 2014 (not updated in 12 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 110 E Arapahoe

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Guy Drake, DDSDentist1144368366

Verify Mary Margaret Brown in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Wyoming board licenses this profession
    Search for license 1370
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Wyoming license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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86% fewer Medicare Part D claims than the average dentist in 2024

12 Medicare Part D claims for 12 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Mary Brown12
  2. Specialty average86

Most prescribed

  1. Amoxicillin11 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Mary Margaret Brown among 150 dentist records in Wyoming

Mary Margaret Brown, D.D.S. is one of 150 dentist records with a practice address in Wyoming. 57% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 69% of them.

  • NPI issued2014 · 69% of these records are older, 26% newer
  • In a Medicare fileYes · 57% of these records are
  • In the CMS Doctors and Clinicians fileNo · 0% of these records are
  • Record last updated2014 · 74% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a Wyoming practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

4 dentist records list a practice address in Thermopolis

They are 4 of the 98 NPPES records with a practice address in Thermopolis, and 150 dentist records in Wyoming.

The 8 dentist records with the nearest ZIP codes

  1. Guy Drake, DDSThermopolis, WY 824431144368366
  2. Leif Polson, D.D.SThermopolis, WY 824431790737005
  3. William Robinson, DDSThermopolis, WY 824431154492601
  4. Ashley Chenoweth, DDSPowell, WY 824351730561127
  5. Scott Williams, DDSPowell, WY 824351467707323
  6. James Christiansen, D.D.SLovell, WY 824311396975181
  7. Jaime Hill, DDSCody, WY 824141548416100
  8. Laci Martoglio, D.D.S.Cody, WY 824141790191393

Common questions

What is Mary Margaret Brown, D.D.S.'s NPI number?

Mary Margaret Brown, D.D.S.'s National Provider Identifier (NPI) is 1639586571, issued on Jul 11, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Mary Margaret Brown, D.D.S. located?

The NPPES record lists a practice address at 110 E Arapahoe, Thermopolis, WY, 82443. Phone: (307) 864-9411. Providers update this record themselves, so call before visiting.

How can I verify Mary Margaret Brown, D.D.S.'s license?

NPPES lists Wyoming license number 1370, as entered by the provider. Search the Wyoming board that licenses this profession; the NPPES record confirms identity only.

How much does Mary Margaret Brown, D.D.S. prescribe under Medicare Part D?

In 2024, Mary Margaret Brown, D.D.S. had 12 Medicare Part D claims for 12 beneficiaries; the average among dentist prescribers was 86. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.